Wave-actuated boat pump



A. DELANEY WAVE-ACTUATED BOAT PUMP Filed April 13, 1962 Feb. 4, 1964 l lH'L /A/z/EA/ra@ 14K NaLZJ .DEL A/vg y 'fi-f" United States Patent3,126,212 WAVE- ACTUATED BGA? PUM? Delaney, Sor/ernment Road, NordsWharf,

New South Wales, Australia Filed Apr. i3, i952, Ser. No. 187,333 Clair?"priority, application Ausraia Apr. l?, 1961 6 (Cl. 114-133) rhisinvention has been devised to provide a boat pump adapted for attachingto a hull on the outside when a boat is moored. The pump incorporates alioat a1'- ranged so that waves or movement of the boat will cause theFloat to actuate the pump. The pump is particularly devised to removewater from the bilge of unattended small craft.

This Wave actuated pump comprises a plunger pump, means for removablyattaching the pump to the outside of a boat hull, means connecting theplunger oi the pump to a .Float in the water in s ch manner that theplunger is reciprocated by the lloat due to wave movement or boatmovement, and a pump suction pipe is extended into the boat bilge.Preferably the pump barrel is open on the discharge side and is solocated that it is automatically maintained primed.

@ne embodiment of the invention is described with reference to theannexed drawings wherein:

FIG. l is a perspective View of the invention attached to the outside ofa boat hull.

FG. 2 is an elevation of the invention with parts of the pump and theattaching means shown in section and with part of the attaching meansbroken away.

As illustrated, the pump consists of a pump barrel 1 having a sludgesump 2 at the bottom thereof, an inlet connection 3 above the sump 2,and an outlet 4 at the top. A valve seat 5 is iixed in the pump barrel labove the inlet 3 and has a foot Valve 6 to register therewith. Aplunger 7 in the pump barrel l has a valve seat 8 formed therein and ahead valve 9 seats thereon.

ri`he plunger rod l@ is connected at one end to the plunger and at itsother end it is connected to a lever l. The lever il is connected at oneend to a oat l2 and its other end it is ulcrumed as at 13 to a bracketfixed on and projecting from an offset limb l5 of base member le. Thebracket Je has a screwed opening E7 in the bottom thereof and the pumpbarrel 1 is mounted in the opening i7, which is also in communicationwith outlet 4. The bracket 14 also has spaced limbs 18 thereon which,with the body of the bracket 14, provide side guides and upper and lowerstops for the lever il. The base member i6 as illustrated, is removablymounted on a mounting plate l@ Which is fixed to the outsi e of the boathull 29.

The iioat i2 is saucer shaped and has a line edge 21. The float "r2 isso constructed that it is normally submerged to a suicient degreewhereby the edge 2l Will minimise side loading on the lever ll due towave movement. The plunger is reciprocated by the float due t0 wavemovement or boat movement.

A flexible pump suction pipe 22, preferably formed from a plasticmaterial such as polytnene, is connected at one end to the inlet 3 andhas its other end located in a bilge of the boat.

I claim:

l. A wave-actuated boat pump comprising, a barrel having a closed bottomand an open top, said open top forming an outlet in said barrel, meansfor removably attaching said barrel to the outside or" a boat, an inletto said barrel adgacent said bottom for receiving a ilexible inlet pipe,a foot valve in said barrel above said inlet, a plunger in said barrelabove said foot valve and having a head valve therein, a rod carried bysaid plunger and projecting from said open top o said barel, a floatadapted to ride on the surface of the water, movable means connectingsaid float to said rod, whereby relative motion between the surface ofthe water and the boat causes vertical movement of said float to actuatesaid plunger.

2. Wave-actuated boat pump according to claim l wherein the pump outletis located below Water level for the purpose of maintaining automaticpriming.

3. Wave-actuated boat pump according to claim l wherein the tioat is asaucer-like vessel constructed to be substantially submerged.

4. A wave-actuated boat pump according to claim 3, wherein, said floatis provided with a line peripheral edge adapted to ride upon the surfaceof the water.

5. A wave-actuated boat pump according to claim 1, wherein, said movablemeans comprises a lever fulcrummed at one end on said attaching meansand having its free end connected to said float.

6. A wave-actuated boat pump according to claim 5, wherein saidattaching means includes a bracket having side guides and upper andlower stops to limit the movement of said lever.

References Cited in the file of this patent UNITED STATES PATENTS850,492 Reynolds Apr. l6, 1907 FOREIGN PATENTS 801,263 Great BritainSept. l0, 1958

1. A WAVE-ACTUATED BOAT PUMP COMPRISING, A BARREL HAVING A CLOSED BOTTOMAND AN OPEN TOP, SAID OPEN TOP FORMING AN OUTLET IN SAID BARREL, MEANSFOR REMOVABLY ATTACHING SAID BARREL TO THE OUTSIDE OF A BOAT, AN INLETTO SAID BARREL ADJACENT SAID BOTTOM FOR RECEIVING A FLEXIBLE INLET PIPE,A FOOT VALVE IN SAID BARREL ABOVE SAID INLET, A PLUNGER IN SAID BARRELABOVE SAID FOOT VALVE AND HAVING A HEAD VALVE THEREIN, A ROD CARRIED BYSAID PLUNGER AND